词汇	激光束亮度
释义	激光束亮度 brightness of laser beam
随便看	Keep away from the precipice Keep away from the scene of the accident Keep away from the shocking pinks Keep away from the spider Keep away from the transformer Keep away from the vertical cliffs keep-away system keep a weather eye on keep a weather eye on somebody/something keep a weather eye open keep a weather weath-eye open keep a whole skin keep a wide berth of keep a woman keep a yearly diary keep bach keep bachelor's hall keep back keep back a crowd keep backfrom keep back from Keep back!The firecrackers are exploding Keep back!The fireworks are exploding Keep back! The fireworks are exploding Keep back! The fir works are exploding